CVE-2021-21056: Adobe FrameMaker PDF File Parsing Out-of-Bounds Read Remote Code Execution Vulnerability
Adobe Framemaker version 2020.0.1 (and earlier) is affected by an Out-of-bounds Read vulnerability when parsing a specially crafted file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Other sources
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe FrameMaker. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of PDF files. Crafted data in a PDF file can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is CVE-2021-21056?
CVE-2021-21056 is a vulnerability that allows remote attackers to execute arbitrary code on Adobe FrameMaker.
How can an attacker exploit CVE-2021-21056?
An attacker can exploit CVE-2021-21056 by tricking the target into visiting a malicious page or opening a malicious PDF file.
What is the severity of CVE-2021-21056?
CVE-2021-21056 has a severity rating of critical with a CVSS score of 7.8.
Which versions of Adobe FrameMaker are affected by CVE-2021-21056?
Adobe FrameMaker versions up to and including 2020.0.2 are affected by CVE-2021-21056.
How do I fix CVE-2021-21056?
To fix CVE-2021-21056, users should update Adobe FrameMaker to a version that is not affected by the vulnerability.